CAJ | 학술논문

目前对电动汽车参与电力系统调频的研究，主要集中在电动汽车作为分布式电源参与系统调频，而对电动汽车作为可控负荷参与系统调频的研究较少。但是，电动汽车作为分布式电源和可控负荷对其参与系统调频具有同等重要的作用。基于此，文中计及了电动汽车的充放电静态频率特性模型，在电力系统负荷扰动发生时，实现了对电动汽车充放电的协调控制，使其在分布式电源和可控负荷两个角色间合理转换。在此基础上，建立了计及电动汽车充放电的单区域系统负荷频率控制模型，并将该模型扩展为两区域互联系统。在 MATLAB/Simulink 中建模并进行仿真分析。算例结果表明，电动汽车作为分布式电源和可控负荷参与系统调频，不仅可以使系统频率调整速度更快，有效减小系统频率偏差，而且能减小传统调频机组的备用容量。
목전대전동기차삼여전력계통조빈적연구，주요집중재전동기차작위분포식전원삼여계통조빈，이대전동기차작위가공부하삼여계통조빈적연구교소。단시，전동기차작위분포식전원화가공부하대기삼여계통조빈구유동등중요적작용。기우차，문중계급료전동기차적충방전정태빈솔특성모형，재전력계통부하우동발생시，실현료대전동기차충방전적협조공제，사기재분포식전원화가공부하량개각색간합리전환。재차기출상，건립료계급전동기차충방전적단구역계통부하빈솔공제모형，병장해모형확전위량구역호련계통。재 MATLAB/Simulink 중건모병진행방진분석。산례결과표명，전동기차작위분포식전원화가공부하삼여계통조빈，불부가이사계통빈솔조정속도경쾌，유효감소계통빈솔편차，이차능감소전통조빈궤조적비용용량。
Currently,researches on electric vehicles for frequency regulation in power system,mainly regard them as distributed generation,while relatively few take them as controllable load.However,electric vehicles are equally important either as distributed generation or as controllable load in frequency regulation.Therefore,a model with charging and discharging static frequency characteristics of electric vehicles is developed first.Then,a charging and discharging coordinated control strategy for electric vehicles is proposed to realize their role conversion between distributed generation and controllable load.Finally, considering charging and discharging of electric vehicles,a load frequency control model each for single and two-area power systems is developed.A simulation study is carried out to demonstrate that electric vehicles for frequency regulation as distributed generation and controllable load,can not only effectively improve power system responsiveness and reduce frequency deviation,but also remarkably decrease the reserve capacity of traditional frequency regulation units. This work is supported by National High Technology Research and Development Program of China (863 Program) (No.201 1AA05A1 10) and the Fundamental Research Funds for the Central Universities (No.CDJPY121 50001).